Improvement in traps for amalgaiviating-pans and settlers



A. B. PAUL; TRAPS FOR AMALGAMATING-PAN'S AND SETTLERS.

No.173,49 Patented Feb. 15,1878.

.,wifr 1esses I v Inventor! PNDTO-LITHOGRAPHEIL wAsHmG'TbN. 'n. cl

of California, have invented a Trap for Amalgamating-pans and settlers,

. be'below the end of the screw when it is turned AENT T ALMARIN B.PAUL, OF SAN FRANCISCO, CALIFORNIA.

IMPROVEMENT "\l TRAPS FOR AMALGAMATiNG-PANS AND SETTLERS.

Specification form'ng part of Letters Patent N 0. 173,492, datedFebruary 15', 1876; application filed I December 18, 1875.

To all whom it may concern;-

Be it known that I, ALMARIN B. PAUL, of San Francisco, San Franciscocounty, State gamating-Pans and Settlers; andl do hereby declare thefollowing description and accompanying drawings are sufficient to enableany person skilled in the art or science to which it most nearlyappertains to make and use my said invention and improvements withoutfurther invention or experiment.

My invention relates to a device the object of which is to obviate thenecessity of stopping the machinery in order to clean up amalpan orother vessel A I make a hole at some point near its outer rimorperiphery, into which I screw a short tube, b, from the bottom up intothe pan. In the lower end of this tube I screw another piece of tubing,0, to the lower. end of which I attach a hollow globe or other suitablereservoir, D. This reservoir or receiver can be made in two parts, asshown, and united atthe middle by flanges, so that the lower half of theglobe can. be removed when desired. A tube, 6, projects downward fromthe bottom of the globe or reservoir D, .which has a screw, f, turnedinto its open end, so as to serve as a plug for closing the hole. Asmall hole, g, is made diagonally through the lower end of the tube 6,so that its upper end will communicate with the opening which is closedby the screw f at a point which will up into the tube, but provides avent or passage when the screw is partly turned out or withdrawn.

The globe D and tubes b and a will be kept constantly filled withmercury, and, as the amalgam accumulates in the amalgamating-pan orother vessel with which the. tube b connects, it will descend throughthe tubes by its superior specific gravity to the lowest party of the vglobe or trap, from which it can be removed by withdrawing the set-screwf, soas to uncover the upper end of the diagonal vent-hole g, and allowthe amalgam to pass out.

A tube, G, is connected with the upper portion of the globe, which islong enough to carry the discharge of quicksilver to the desired point.At the end of this tube G an elbow, h, is attached, so that it can beturned to any desired position about the end of the tube G, and anothertube, 5, is serewedorotherwise secured upon the upturned end of theelbow. This tube *5 is long enough to extend, say, two or three inchesabove the upper end of the tube I), which connects with the vessel tothe elbow h. This dialor quadrant is graduated, as shown at Fig. 2.

.The operation is as follows: Before charging the pan or other vesselwith ore or water the tube 2' is placed in a vertical position, andmercury poured into the tube 1) until the reservoir and pipes arefilled. The mercury will then stand in the pipe 2' 011 a level with themercury in the globe or reservoir. The pans or other vessels are thenfilled with water up to the lowest point at which itisgenerallydischarged during regular running. The elbow h is then turnedupon the end of the tube G, so asto lower the upper end of the pipe 6 byturning it in a circle until the mercury shows itself ready to drop fromthe'nozzle or curved spout J. This point is noted on the dial orindicator as the point at which all surplus mercury and amalgam can bedrawnofl'. After the pan'has run awhile, and amalgam has been depositedin the globe or trap, the

mercury will'rise in the tube i, when, by again lowering this tube, theheight of the mercury can be ascertained by the drip, and a sufficientquantity of amalgam and. quicksilver drawn oft tnrough the vent-hole g,as above described, until the proper level has again been attained.

.This processof removing the accumulated Prion filled as full asdesired.

amalgam and surplus quicksilver cambeaccomplished at any time.whilehthes. pans are working, without interfering with their operationin the least, or stopping the machinery..

It is desirable to give the vessel to the bottom of which the tube b isconnected a slight inclination toward the point of discharge, say ofone-eighth of one inch to the foot.

When running, the pipe 5 shouldremain in a vertical position, and thevessel can be kept to run 0E mercury, lower the pipe or tube i graduallyas the pressure lessens, for flow ofmercury, and until it reaches thedesired point, as indicated on the dial.

When it is desired-- the trap-and pas-while d-rawi-ngpffjtheamalgamvandquicksilver fronr theyreservoir.,

To wash the reservoir or trap out, so' as to remove-an y clinging orlodged amalgam, throw in clean mercury, which will dislodge and carry itout.

Having thus described my invention, whatI claim, and desire to secure byLetters Patent, 1s-

1. In combination with a trap or reservoir, for collecting amalgam frompans, and settlers, I claim the pipe Gr; swiveling-elbow h, and tube 6,for the purpose specified.

2. The fixed dial or indicator K, in combination with the swiveling-tubei, tubes G and 0, and trap D, substantially as and for the purpose abovedescribed.

In witness whereof I hereunto set'myhand.

ALMARIN B. PAUL.

Witnesses:

J. L. BOONE, O. M. RICHARDSON.

